CBSE Class 10 Maths Real Numbers (1)

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Q01 :} Find the smallest number which when divided by 30, 40 and 60 leaves the remainder 7 in each case.

Q02 :} The dimensions of a room are 6 m 75 cm, 4 m 50 cm and 2 m 25 cm. Find the length of the largest measuring rod which can measure the dimensions in exact number of times.

Q03 :} The HCF of 2 numbers is 75 and their LCM is 1500. If one of the numbers is 300, find the other.

Q04 :} Prove that is irrational.

Q05 :} Can 72 and 20 respectively be the LCM and HCF of two numbers. Write down the reason.

Q06 :} If a and b are two prime numbers, write their HCF and LCM.

Q07 :} If p and q are two coprime numbers, write their HCF and LCM.

Q08 :} Without actual division, state whether the decimal form of is terminating OR recurring.

Q09 :} Find the HCF and LCM of 350 and 400 and verify that HCFxLCM=Product of the numbers.

Q10 :} Simplify:

Q11 :} Write down 5 irrational numbers in radical form which are lying between 4 and 5.

Q12 :} Write down 2 rational numbers lying between and .

Q13 :} Complete the missing entries in the following factor tree.

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